Overview

Comprehensive Description

Biology

Nocturnally active; inhabits cracks and crevices during the day. Feeds on small mobile benthic organisms (Ref. 26966), by drifting up to its prey and swallowing it whole with a sideways snap of the large extensible mouth (Ref. 26966).
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Distribution

Distribution

New Zealand Exclusive Economic Zone
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Source: World Register of Marine Species

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Southwestern Pacific: Restricted to New Zealand.
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Physical Description

Size

Max. size

72.0 cm SL (male/unsexed; (Ref. 31667))
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Ecology

Habitat

Environment

reef-associated; marine; depth range 15 - 35 m (Ref. 28787)
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Depth range based on 4 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 2 - 7

Graphical representation

Depth range (m): 2 - 7
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Trophic Strategy

Is active at night; stays in cracks and crevices during the day. Feeds on small mobile benthic organisms (Ref. 26966), by drifting up to its prey and swallowing it whole with a sideways snap of the large extensible mouth (Ref. 26966).
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest
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Wikipedia

Slender roughy

The slender roughy, Optivus elongatus, is a small slimehead of the family (Trachichthyidae), the only member of the genus Optivus, found in the western Pacific Ocean around Australia and New Zealand at depths of between 1 and 100 m. Its length is up to about 10 cm.

References

  • Froese, Rainer, and Daniel Pauly, eds. (2006). "Optivus elongatus" in FishBase. May 2006 version.
  • Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8
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